 Pope Gregory VII referred to him as an "amator justitiae", lover of justice; "defensor pauperum", defender of the poor; and "propagator pacis", propagator of the peace.Towards 1060, Centule married a relative of his, probably a cousin, possibly a daughter of Bernard II of Gascony, named Gisela (Gisla), with whom he had two children, his heir Gaston IV and a daughter named Osquinette.The pope, however, exhorted him to break the marriage on grounds of consanguinity, which he obediently did (1074), founding, in penitence, a priory at Morlaas dependent on the Abbey of Cluny.